shampoo

Complete problems 2 and 4 on pages 240

–

241 of your textbook

W

Be sure to include your work with

yo

ur answers.

2. A quality control inspector at the Beautiful Shampoo Company has taken three samples with four

observations each of the volume of shampoo bottles filled. The data collected by the inspector and the

computed means are shown here:

4. A production manager at Ultra Clean Dishwashing Company is monitoring the quality of the

company

’s production process. There has been concern relative to the quality of the operation in

accurately filling the 16 ounces of dishwashing liquid. The product is designed for a fill level of 16.00 ±

0.30. The company collected the following sample data on t

he production process:

(a) Are the process mean and range in statistical control? (b) Do you think this process is capable of

meeting the design standard?

Complete problems 2 and 4 on pages 240–241 of your textbook WBe sure to include your work with

your answers.

2. A quality control inspector at the Beautiful Shampoo Company has taken three samples with four

observations each of the volume of shampoo bottles filled. The data collected by the inspector and the

computed means are shown here:

4. A production manager at Ultra Clean Dishwashing Company is monitoring the quality of the

company’s production process. There has been concern relative to the quality of the operation in

accurately filling the 16 ounces of dishwashing liquid. The product is designed for a fill level of 16.00 ±

0.30. The company collected the following sample data on the production process:

(a) Are the process mean and range in statistical control? (b) Do you think this process is capable of

meeting the design standard?